企业经营策划中竞争对手的识别策略分析

竞争对手分析是企业确定竞争策略的基本前提,要分析竞争对手首先就要准确识别竞争对手.本文从确定识别竞争对手的标准入手,以品牌转换分析、产品市场矩阵图、策略团体分析和竞争层次分析等四种方法详细说明企业应如何准确辨识竞争对手.     

重庆城市化水平差异分析

城市化水平是一个地区的综合实力的反映.重庆作为长江上游的中心城市,研究其城市化水平状况及其形成原因,并提出相应对策,对该地区的发展有重大的现实意义.本文首先选取了客观的指标进行城市化水平量化分析,通过主成分分析和聚类分析,将城市化水平因子进行筛选并对重庆的各区县的城市化进行分类.在归类的基础上,从历史原因、城镇体系、城市基础设施、产业结构和制度滞后五个方面对重庆市城市化水平差异的原因进行分析,提出相应的调整对策和措施.     

经济发展-当代中国社会转型期道德变迁的决定力

马克思主义关于"经济决定道德"的伦理观包含两层涵义:一是经济制度决定着一定的道德;二是一定的经济水平决定一定的道德.文章由此而分别分析论证,经济发展的两个方面即经济制度的转变与经济水平的提高分别促进和决定着道德的变迁.中国当代社会转型期经济发展成为当代中国社会道德变迁的决定性力量--决定力,并从经济发展的两个方面即由计划经济向市场经济的转型和经济水平的提高这两个方面分析论证当代中国社会转型期的道德变迁的必然性、必然趋势、基本内容和基本性质.     

On a new test for autocorrelation in regression models under nonnormality

A new test for autocorrelation in a general regression model under departures from the assumption of normality is derived by applying a beta distribution and bootstrap approximation, Critical values of the test, can be computed for each given design matrix, irrespective of the form of the underlying error distribution, Monte Carlo simulations are conducted in order to illustrate the performance of the test. Among others, it. is found that the suggested test is more robust and far more powerful than existing nonparametric tests.     

Universal domination of stein-type estimators

For the problem of estimating the location parameter of a p-variate spherically symmetric distribution (p>3), Hwang (1985) established the dominance of some positive-part James-Stein (1961) estimators over the usual estimator simultaneously under a very general class of loss function. Vie show that many of his results can be extended to a class of positive-part Baranchik-type estimators (1970).     

Testing for or against a trend in odds ratios

Consider data arranged into k × 2 × 2 contingency tables. The principal result of this paper is the derivation of the likelihood ratio test and its asymptotic distribution for testing for or against an order restriction placed upon the odds ratios. We will show that the limiting distributions are of chi-bar square type and give the expression of the weighting values.     

Comments on a simple test for new better than used in expectation1 by borges,proschan and rodrigues

Procedures and tables are givenfor construction and selection of continuous sampling plans of the type CSP-2 for a given pair of conditions.     

Bivariate Sign Test for One-Sample Bivariate Location Model Using Ranked Set Sample

In this article, we introduce a bivariate sign test for the one-sample bivariate location model using a bivariate ranked set sample (BVRSS). We show that the proposed test is asymptotically more efficient than its counterpart sign test based on a bivariate simple random sample (BVSRS). The asymptotic null distribution and the non centrality parameter are derived. The asymptotic distribution of the vector of sample median as an estimator of the locations of the bivariate model is introduced. Theoretical and numerical comparisons of the asymptotic efficiency of the BVRSS sign test with respect to the BVSRS sign test are also given.     

The Non Dominated Set in Bayesian Decision Problems with Convex Loss Functions

Bayesian decision problems require subjective elicitation of the inputs: beliefs and preferences. Sometimes, elicitation methods may not represent perfectly the judgements of the decision maker. Several foundations propose to overlay this problem using robust approaches. In these models, beliefs are modelled by a class of probability distributions and preferences by a class of loss functions. Then, we are in the conditions of a Pareto order. Hence the solution concept is the set of non dominated alternatives. In this article we focus on the computation of the efficient set when the preferences are modeled by a class of convex loss functions.